WorldCast is a program that acts like a self-sufficient SMTP relay, sending your customized message straight out to the recipient's mail server (without using your ISP's SMTP server, although it still offers the possibility to use any SMTP server). It has extensive mail merge capabilities . Given a certain emailing list, containing e-mail, name and job, for instance, the program generates a customized e-mail to each recipient. WorldCast as an e-mail-address validator verifies an entire posting list, reporting the good and bad e-mail addresses. It connects directly to the recipient's SMTP server and checks it for you - , without actually sending any message to them. It's a helpful tool to keep an updated e-mail database of your friends, customers, suppliers, etc., without actually disturbing them, since nothing is sent to the recipients. It helps to decrease internet traffic, because you can "wash" your posting list beforehand, avoiding sending undeliverable messages that cause a ping-pong of useless messages between SMTP servers. As well as saving your Internet resources, WorldCast helps you to save your money. WorldCast features a very complete syntax-oriented editor, mail merge capabilities, HTML editing and preview support, accepting multi-byte (unicode) character set languages, such as Arabic, Japanese, Chinese, Korean. Features also an advanced spell-checker (many dictionaries available for free), Thesaurus, extensive filtering of the results, crash recovery, message attachments, etc.